Proyectos de Subversion Moodle

<?php

/**

 * SimplePie

 *

 * A PHP-Based RSS and Atom Feed Framework.

 * Takes the hard work out of managing a complete RSS/Atom solution.

 *

 * Copyright (c) 2004-2022, Ryan Parman, Sam Sneddon, Ryan McCue, and contributors

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without modification, are

 * permitted provided that the following conditions are met:

 *

 * 	* Redistributions of source code must retain the above copyright notice, this list of

 * 	  conditions and the following disclaimer.

 *

 * 	* Redistributions in binary form must reproduce the above copyright notice, this list

 * 	  of conditions and the following disclaimer in the documentation and/or other materials

 * 	  provided with the distribution.

 *

 * 	* Neither the name of the SimplePie Team nor the names of its contributors may be used

 * 	  to endorse or promote products derived from this software without specific prior

 * 	  written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS

 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY

 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS

 * AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR

 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR

 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

 * POSSIBILITY OF SUCH DAMAGE.

 *

 * @package SimplePie

 * @copyright 2004-2016 Ryan Parman, Sam Sneddon, Ryan McCue

 * @author Ryan Parman

 * @author Sam Sneddon

 * @author Ryan McCue

 * @link http://simplepie.org/ SimplePie

 * @license http://www.opensource.org/licenses/bsd-license.php BSD License

 */

namespace SimplePie\Cache;

use Redis as NativeRedis;

/**

 * Caches data to redis

 *

 * Registered for URLs with the "redis" protocol

 *

 * For example, `redis://localhost:6379/?timeout=3600&prefix=sp_&dbIndex=0` will

 * connect to redis on `localhost` on port 6379. All tables will be

 * prefixed with `simple_primary-` and data will expire after 3600 seconds

 *

 * @package SimplePie

 * @subpackage Caching

 * @uses Redis

 * @deprecated since SimplePie 1.8.0, use implementation of "Psr\SimpleCache\CacheInterface" instead

 */

class Redis implements Base

{

    /**

     * Redis instance

     *

     * @var NativeRedis

     */

    protected $cache;

    /**

     * Options

     *

     * @var array

     */

    protected $options;

    /**

     * Cache name

     *

     * @var string

     */

    protected $name;

    /**

     * Create a new cache object

     *

     * @param string $location Location string (from SimplePie::$cache_location)

     * @param string $name Unique ID for the cache

     * @param Base::TYPE_FEED|Base::TYPE_IMAGE $type Either TYPE_FEED for SimplePie data, or TYPE_IMAGE for image data

     */

    public function __construct($location, $name, $options = null)

    {

        //$this->cache = \flow\simple\cache\Redis::getRedisClientInstance();

        $parsed = \SimplePie\Cache::parse_URL($location);

        $redis = new NativeRedis();

        $redis->connect($parsed['host'], $parsed['port']);

        if (isset($parsed['pass'])) {

            $redis->auth($parsed['pass']);

        }

        if (isset($parsed['path'])) {

            $redis->select((int)substr($parsed['path'], 1));

        }

        $this->cache = $redis;

        if (!is_null($options) && is_array($options)) {

            $this->options = $options;

        } else {

            $this->options = [

                'prefix' => 'rss:simple_primary:',

                'expire' => 0,

            ];

        }

        $this->name = $this->options['prefix'] . $name;

    }

    /**

     * @param NativeRedis $cache

     */

    public function setRedisClient(NativeRedis $cache)

    {

        $this->cache = $cache;

    }

    /**

     * Save data to the cache

     *

     * @param array|\SimplePie\SimplePie $data Data to store in the cache. If passed a SimplePie object, only cache the $data property

     * @return bool Successfulness

     */

    public function save($data)

    {

        if ($data instanceof \SimplePie\SimplePie) {

            $data = $data->data;

        }

        $response = $this->cache->set($this->name, serialize($data));

        if ($this->options['expire']) {

            $this->cache->expire($this->name, $this->options['expire']);

        }

        return $response;

    }

    /**

     * Retrieve the data saved to the cache

     *

     * @return array Data for SimplePie::$data

     */

    public function load()

    {

        $data = $this->cache->get($this->name);

        if ($data !== false) {

            return unserialize($data);

        }

        return false;

    }

    /**

     * Retrieve the last modified time for the cache

     *

     * @return int Timestamp

     */

    public function mtime()

    {

        $data = $this->cache->get($this->name);

        if ($data !== false) {

            return time();

        }

        return false;

    }

    /**

     * Set the last modified time to the current time

     *

     * @return bool Success status

     */

    public function touch()

    {

        $data = $this->cache->get($this->name);

        if ($data !== false) {

            $return = $this->cache->set($this->name, $data);

            if ($this->options['expire']) {

                return $this->cache->expire($this->name, $this->options['expire']);

            }

            return $return;

        }

        return false;

    }

    /**

     * Remove the cache

     *

     * @return bool Success status

     */

    public function unlink()

    {

        return $this->cache->set($this->name, null);

    }

}

class_alias('SimplePie\Cache\Redis', 'SimplePie_Cache_Redis');